Folded Foam Sealing Block for Cable Channel Airflow
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Solution Overview
Problem
Airflow cooling systems in Information Handling Systems (IHS) are inefficient due to air gaps created when cables and wires cross into air-cooled compartments, which reduces the effectiveness of cooling fans in ventilating heated air.
Innovation Solution
A foam sealing block is folded around cables to block air transfer through cable channels, using a design with hemispherical protrusions and a rigid bracket that can be folded to fit within the channel, ensuring airtight sealing while allowing cables to traverse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cables and wires are allowed to cross into the air-cooled compartment, then electrical connectivity is maintained, but air gaps are created that reduce cooling effectiveness
Solution Approach 1:
A foam sealing block is introduced as an intermediary component within the cable channel. This foam block serves as a mediator that allows cables to pass through while simultaneously sealing air gaps, thus maintaining both electrical connectivity and cooling effectiveness
Solution Approach 2:
The foam sealing block utilizes flexible foam material that can deform to accommodate cables of various sizes and configurations. The flexible nature of the foam allows it to conform around cables while maintaining an airtight seal, preventing air leakage through the cable channel
2Reliability
If a rigid seal is installed in the cable channel, then air transfer is blocked, but the seal cannot accommodate cable movement or different cable configurations
Solution Approach 1:
The foam sealing block changes its physical parameters (shape, volume, density) in response to the presence and configuration of cables. The foam material can compress, expand, and deform to adapt to different cable arrangements while maintaining its air-sealing function
Solution Approach 2:
The foam seal transitions from a static rigid structure to a dynamic flexible material that can adjust its configuration. The foam's ability to deform and recover allows it to accommodate cable insertion, removal, and repositioning while continuously maintaining the air seal
3Reliability
If the foam sealing block is made large to ensure complete sealing, then air gaps are fully blocked, but the block becomes difficult to install and may obstruct cable channels
Solution Approach 1:
The foam sealing block is designed as a segmented or modular component that can be divided into smaller sections. This segmentation allows the seal to be installed in manageable pieces that can be assembled within the cable channel, reducing installation difficulty while maintaining complete sealing coverage
Data Source
AI summary
A foam sealing block is provided for sealing a cable channel by which one or more cables traverse into an air-cooled compartment. The foam sealing block may folded around the cables and positioned within the cable channel. The insertion of the folded foam sealing block prevents the transfer of air from the air-cooled compartment via the cable channel, while still allowing the cables to traverse the cable channel. The top surface of the foam sealing block may formed from offset rows of protrusions, such as hemispherical shaped protrusions. The dimensions and shape of the protrusions may be selected based on the physical characteristics of the cables traversing the cable channel. The bottom surface of the foam sealing block may be formed from a perforated, rigid bracket that allows the foam sealing block to fit securely within the cable channel.